refs #4877 Added save and plot option.

Save option in CalcCorr and ApplyCorr. Improved the drop-down menu in ApplyCorr.
refs #4877 Improved GUI options

'Plot Output' drop-down menu now complete and added an option to 'Plot Contributions'
refs #4877 Added option to scale container
refs #4877 Changed tabs into spaces
refs #4877 Rearranged buttons and reactivated 'Verbose' options
Merge remote-tracking branch 'origin/feature/4877_indirect_apply_corr'